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3E' 20 How Computers Work?

Total questions: 30

Worksheet time: 16mins

Name
Class
Date
1.

How many bits are in a byte?

a)

4

b)

2

c)

16

d)

8

2.

Computer speed is measured in

a)

memory

b)

hertz

c)

MB

d)

bytes

3.

A billion bytes is called

a)

Kilobytes

b)

Terabytes

c)

Gigabytes

d)

Megabytes

4.

The only language a computer can read is

a)

binary

b)

scratch

c)

RAM

d)

javascript

5.

RAM is

a)

Operating System

b)

Short-term memory

c)

Long-term memory

d)

Hardware

6.

The computer won't even turn on without this....

a)

RAM

b)

operating system

c)

memory

d)

Google

7.

Long- term memory is where these are stored:

a)

program and files

b)

RAM

c)

clipboard

d)

passwords

8.

Software is

a)

Keyboard, Mouse, Monitor

b)

Microsoft Word, Google, Operating System

c)

Keyboard, Google Docs, Mouse

d)

Microsoft Word, speakers, Snipping Tool

9.

Hardware can be broken up into two categories :

a)

On/Off

b)

Input/Output

c)

Bits/Bytes

d)

GB/MB

10.

An example of input device is

a)

Monitor

b)

Printer

c)

Keyboard

d)

Speakers

11.

An example of output device is

a)

Keyboard

b)

Mouse

c)

Printer

d)

microphone

12.

The main printed circuit board in a computer.

a)

CPU

b)

Motherboard

c)

RAM

d)

DOS

13.

CPU stands for ___.

a)

Central Programming Unit

b)

Computer Programming Unit

c)

Computer Processing Unit

d)

Central Processing Unit

14.

An electrical device that provides a path for electrical current flow is known as __.

a)

transistors

b)

circuits

c)

vacuum tubes

d)

microprocessors

15.

RAM stands for ___

a)

Random Answers Monitoring

b)

Random Access Memory

c)

Recessed Access Memory

d)

Random Action Monitoring

16.

The rules, calculations, or other problem solving calculations of a computer is known as a ___.

a)

processing

b)

storage

c)

output

d)

algorithm

17.
Who developed the idea of a stored program computer and modern computer architecture?
a)
John Von Neumann
b)
Bill Gates
c)
Steve Jobs
d)
Tim Berners-Lee
18.
What connects the processor and memory?
a)
Buses
b)
Cache
c)
NIC
d)
Control Unit
19.
What are the 3 parts of the Von Neumann computer architecture?
a)
Processor (CU & ALU), Memory Unit & Input/Output
b)
Processor, RAM & ROM
c)
Processor, RAM & Hard Disk
d)
Memory (CU & ALU), Hard Disk & Input/Output
20.
What are the two main parts of the processor?
a)
Control Unit & Arithmetic Logic Unit
b)
RAM & ROM
c)
RAM & Cache
d)
Control Unit & Cache
21.
Which of these is not a bus within the computer?
a)
I/O Bus
b)
Address Bus
c)
Data Bus
d)
Control
22.
Which of these buses is bi-directional?
a)
Data Bus
b)
Control Bus
c)
Address Bus
d)
Cache Bus
23.
Which bus is used to send read and write signals to a storage device such as a HDD?
a)
Control Bus
b)
Data Bus
c)
Address Bus
d)
I/O Bus
24.
The location of where data can be found in the computer memory is called the?
a)
Address
b)
Coordinates
c)
Register
d)
Cache
25.
The small high speed storage areas within the memory and processor are known as..?
a)
Registers
b)
Addresses
c)
Cache
d)
Buses
26.
What does the DDR in DDR SDRAM stand for?
a)
Double Data Rate
b)
Dynamic Data Rate
c)
Double Data Repitition
d)
Dynamic Data Repitition
27.

Which of the following are components of the CPU ( select as many as appropriate)

a)

Control Unit

b)

Buses

c)

Arithmetic & Logic Unit

d)

Dedicated Registers

28.

The data moves along the data bus..

a)

in one direction

b)

in two directions

29.

Look carefully at the CPU diagram shown here. There is a mistake in the representation of how data travels to/from one of the buses. Which bus is labelled incorrectly?

a)

Control Bus

b)

Address Bus

c)

Data Bus

30.

Here is a simple diagram representing the CPU. Which missing component is labelled by the question mark?

a)

The ALU

b)

Backing Store

c)

Main Memory

d)

System Bus

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